Duplex tool holder



Feb., 135 1923. 1,445,579..

- a. ERICKSEN.

DUPLEX TooL Humm. 'man APR. am *1921.

By WMV o 4 NORA/EFS onrriy `ing work during kinds, whereby `a .ling the device.

ldatented lid,

rarita tritati IVAB CERCKSEN, F CHICAG, ILLINOIS.

` DUPLEX .ToorJ Homann.

application inea Api-n se, i921. eel-iai no. 4.65am.

lie itlmown that i, lvm ,ilinoiismn a citizen oi the United. States, and a resident oil Chicago, in the county oi @ook and litate ot illinois, have invented a new and nseifnl improvement in Vlhnplex 'Fool Holders, o" which the 'following is a tnll, clear, and cX- actdescription.

My invention 'relates to improvements in 'duplex tool holders, and it consists in the combinations, constructions and arrangelnents herein described and claimed.

An object ol' iny invention is to provide a device adapted lor attachmei'lt to the ref cipilocating;v rain ot a Shaper or planer and provided.with means lor operatively engagboth .inovenients ofthe reciprocating ram. y i

n. further object ot iny invention isto providea device oft the character described in which a block or head tool is arranged to swing freely in one dircction, and is held against movement in the opposite direction.

A ti'irther object oit iny invention is to provide a device of the character described that Ais ailapted to hold cutting" tools ot various roughing cut and a finishing cut may be made alternately dui ing` the reciprocations of the member propel- A further object oi iny invention is to provide a device oit the character described that is simple in coiistruction and operation,

cfnnpriscs relatively iewl parts, and. is `not likely to'get out of order easilyn i Other objects and. advantages will appear in "the .following specification. and` the novel features ofthe invention will be particularly pointed. out in the appendedclaims.

My invention is illustrated in the accompanying01 drawings, forming` part `oi this ap plication, in` which Figure `1`is`a side elevation, showing device "operatively applied,

`Figure 2 is a bottom plan view ot device,

Figure 3 is an end the device,`

Figure fi is` a bottom plan view oi the porthe the

view ot a portion ot `tion of the device shownin Figure 3,

Figure 5` is a side elevation of a block or carrier embodied inthe devicefor supportinnV a cutting tool, and

Figure 6 is a bottoni view ot thetool carrying bloeit.

for carrying a cuttingr y In carrying out my invention, l provide a body portion 1 having a shank 1 that adapted for connection with a reciprocating;` ram, indicated generally at 2, ot a planer or Shaper. The body portion 1 is formed with integral lateral ving extensions or abutments 3 and fl at its lower end. The abutinents or wing,` extensions 3 and d are positioned diagonally with respect to one an other and are substantially identical with cach other in conformation. lt is to be noted that the inner side wall oi each of the wing extensions is beveled inwardly Ytroni the outer tace thereo't as indicated at 5 and 6 respectively (see liligures l, andQ) and that each inner side wall is 'inclined so that each abutment terminates short oi the upper end of the body portion 1. Each oi the inu ner side walls of the abutinents 3 and 4 cooperates with the adjacent side wall of the body portion 1 to provide a recess `indicated at 7 and 8, such recesses being,` diagonally disposed, with respect to each other.

The body portion lhas integral trunnions 9 and 1() extending within the recesses i' and 8 respectively so that the ends thereoi are substantially `flush with the outer 'faces oi: the abutinents 3 and l respectively. The trunnion 9 is formed. with a threaded axial bore 11 and ablock or head 12 having an opening' 13 extending transversely Vthere-` through is maintainedin the position illus trated. in F i ,cures 1 and 2 when a cap screw 14. threaded into the axial bore l1. The block or head 12 is substantially rectangular in forin, as clearly shown in Figures 5 and G and is out away at 15 at its upper endand at 16 at its lower end. so that the weight thereof will tend to maintain it in vertical position. Con`sequently, the end wall 17 thereof whichis beveled to conforrnwith the adjacent wall of the abutment 3 will normallybe inai-ntained by gravity against the adjacent wall of the abutment 3. The block `or head 12 is fashioned with a non-circular 2 Les '-1 through adapted to receive the trunnion l0. A. cap scren' 2d; threaded into an arial here 25 in the end ot the trnnnion l0 prevents displacementl ot the block 22 :troni the recess 8. The block or head 22 has an opening-2G the ethrough adapted to receive a cutting tool' 2.7 that is maintained therein bymeans ot a set screw 28 threaded into an opening` t not shown) that corresponds to the opening Further description ot the blocl; or head 22 is deemed unnecessary since the saine is precisely identical with the block or head l2.

From the foregoing` description oit the various partis olil the device, the @aeration thereotlinay. he readily understood. The rain. 2 reciprocates horizontally so that the cutting tools 1Q and arenioved across the surtace ot work that is indicated at 29. lllhen the rain 2 is moving toward the left hand side oit the sheet, the

peratively engage the work 2S) so that a desiredcut will be made. it this time, the contact ot the work 29 with the cutting` tool 2i'ywhich is not disposed tor operative engagement when the rain is nioviirs;l in that direction, may cause the block or head to swing about the trunnion l0 .against the action et gravity. l/Vhen the movement of the ram is reversed, the cutting tool 27 will o peratively engage the work while the cutting tool lt) may swing freely :in the direction opposite to the movement ot' the rain. lt will thus be observed that I provide a device having ineens` tor accomplishing desired cuts in a work duringthe movement oit the reciprocating ram of a. Shaper or a. planer in each direction, and consequently a great savingY results in that a maximum of work may be accomplished by a given machine in a` minimum time and Without any increased eri-- penditure oi" power. rlhe cutting' tools l) and 27 may be precisely identical with one another or may be adapted :for different nses. as for instance7 the .tool 19 may be a roughh ing toolywhile the tool 27 may he a Finishing. tool and both the linishing' and roughing operations may be etlected during a complete reciprocation of the actuating rain. A(lne ot the cutting' tools may be positioned. to extend below the other cutting` tool so that a deeper cnt -willkbemade thereby. The passagl'csor sockets 1S and 2t`are preferably non-circular so that rotation ot the Shanks of the cutting tools ltland 20is precluded.

-flhe device is relatively simple in construe* tion and each critting'tool is positively held for'. operative .engagement with the work during a movement of a moving part of the machine to which the device is applied in cutting` tool 19 will one direction. and is peri'nilted to swing freely when the moving part` is inoi'cd in the om'iositii. dirci'ztion.

l claim l. ln a device ot the character described. a. body portion having` a shank arranged t'or connection with a reciprocatiniir rain oll a snrticinr; machine, said hodv portion heineY tornicd with integral extensions to opposit.n sides thereo't and with opposit'cllv cNtcndin/ f trunnions. and a block mounted on cach trannion to swing treoly in one direction troni .normal position azeninst the correspondini? extension. each block boing provided with a socliet adapted to receive a cutting` tool.

2. ln a device oi" the character drsirilied. a hodj; portion liavinfi` a shanli arranged t'or connection with a reciprocalinn' rain otv a surtacing machine. said bod)v portion heine formed with ntcgril extensions to opp sito sides thm-coi" and with oppositcly er;- iending t'rnnnions, and :i blot-lt mounted on cach trunnion to swing' 'freely 'n ono direc tion 'troni noi-nml position against thc roi-re spondingi' extension. nach block hcingz; pro vided with a Soclit adapted to rociivo :i cntting tool. said integral extensions lici|i;1ro|atirol)v positioned so that the tool holi'linn liloclrs may swing 'freely in opposite directions.

3. A. device ot the type descrihml conn-iris- .ing` a hod}v having' a vertical plate-shaped portion. latcrallu aliggncd trunnioin-v carried by the upper ond ot said plato. :and cutter holders ilrivotally carried hy said trunnions. and liciug adapted to swing into a vcrtical position h v gravity. and stops carried by said plato andfheinn` adapted to prevent the inoven'ient ot said holdersy in one direc tion.` and to pcrroit the inovoincnt ot thc holders in the other direction. wlwroliy said holders are treo to swingr in opposite direc tions with respect to cach ot hor.

device ot the type dcscrilii'd compris ing a bod);Y having` a vertical plate-shaped portion, latcrallj.' aligned trunnions carried ln' the upper ond ot said plato. and cutter holders pivotallj,v carried by said trumiionsy and` boina` adapted to swing` into a vertical position by gravity. stops carried hy said plate and being adapted to prevent" the movement ot said holders in one direction. and to permit the movement". ot the holders in the other direction. nfhcrclrv said holders are tree to swing in opposite directions with ie spcct to cach other. said holders haring; sanare sockets therein adapted to receive cutters, and cutters adjnst'ably carried hy said sockets.

IVAR .ERIC liti EN.

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